Like-sign dimuon events produced in narrow-band neutrino and antineutrino beams
Forty seven events of the type v + Fe → μ − + μ − + X and nine events of the type v + Fe → μ + + μ + + X have been observed, and zero events with like-sign muons of the opposite sign. Most of the observed events can be attributed to the background of normal charged current events, in which one of th...
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Published in | Physics letters. B Vol. 70; no. 3; pp. 396 - 398 |
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Main Authors | , , , , , , , , , , , , , , , , , , , , , , , , , , , , |
Format | Journal Article |
Language | English |
Published |
Elsevier B.V
01.01.1977
|
Online Access | Get full text |
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Abstract | Forty seven events of the type
v + Fe →
μ
− +
μ
− + X and nine events of the type
v +
Fe → μ
+ + μ
+ +
X
have been observed, and zero events with like-sign muons of the opposite sign. Most of the observed events can be attributed to the background of normal charged current events, in which one of the pions or kaons of the hadron shower decays, and so produces a second muon. The remaining events correspond to rates of the order of (3 ± 2) × 10
−4 of those for charged current events. They may very well be due to the hadronic production of a charm-anticharm pair, with subsequent decay of one member of the pair. The observed rates correspond to charm-anticharm pair production in 0.5–1% of the hadron showers. No evidence can be found for a lepton-cascade origin of the observed events. |
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AbstractList | Forty seven events of the type
v + Fe →
μ
− +
μ
− + X and nine events of the type
v +
Fe → μ
+ + μ
+ +
X
have been observed, and zero events with like-sign muons of the opposite sign. Most of the observed events can be attributed to the background of normal charged current events, in which one of the pions or kaons of the hadron shower decays, and so produces a second muon. The remaining events correspond to rates of the order of (3 ± 2) × 10
−4 of those for charged current events. They may very well be due to the hadronic production of a charm-anticharm pair, with subsequent decay of one member of the pair. The observed rates correspond to charm-anticharm pair production in 0.5–1% of the hadron showers. No evidence can be found for a lepton-cascade origin of the observed events. |
Author | Wotschack, J. Paar, H.P. Steinberger, J. Wahl, H. Williams, E.G.H. Bloch, P. Spahn, G. Dorth, W. Devaux, B. Grimm, M. Rander, J. Willutzki, H-J. Navarria, F.L. Tittel, K. Peyaud, B. Suter, H. Dydak, F. May, J. Eisele, F. Geweniger, C. Schlatter, D. Turlay, R. Hepp, V. Palazzi, P. Holder, M. Kleinknecht, K. Maillard, J. Savoy-Navarro, A. Knobloch, J. |
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CitedBy_id | crossref_primary_10_1103_PhysRevD_18_2308 crossref_primary_10_1103_PhysRevD_23_2745 crossref_primary_10_1103_PhysRevLett_39_1650 crossref_primary_10_1016_0370_2693_79_90791_3 crossref_primary_10_1103_PhysRevLett_41_725 crossref_primary_10_1103_PhysRevD_28_1071 crossref_primary_10_1016_0370_2693_81_90821_2 crossref_primary_10_1007_BF01581593 crossref_primary_10_1088_1742_6596_110_8_082008 crossref_primary_10_1016_0370_2693_79_90630_0 crossref_primary_10_1103_PhysRevD_18_108 crossref_primary_10_1016_0370_2693_82_90114_9 crossref_primary_10_1016_0370_2693_86_90722_7 crossref_primary_10_1007_BF01555733 crossref_primary_10_1016_j_physrep_2004_07_005 crossref_primary_10_1016_0550_3213_83_90539_4 crossref_primary_10_1007_BF02724351 crossref_primary_10_1016_j_nuclphysbps_2005_01_019 crossref_primary_10_1016_0550_3213_80_90015_2 crossref_primary_10_1007_BF02751874 crossref_primary_10_1007_BF01547927 crossref_primary_10_1103_PhysRevD_24_7 crossref_primary_10_1007_BF00671990 crossref_primary_10_1007_BF01559590 crossref_primary_10_1016_0550_3213_79_90611_4 crossref_primary_10_1103_PhysRevLett_46_1555 crossref_primary_10_1016_0550_3213_79_90115_9 crossref_primary_10_1103_PhysRevD_23_1889 crossref_primary_10_1103_PhysRevD_19_1978 crossref_primary_10_1016_S0370_2693_02_02092_0 crossref_primary_10_1140_epjc_s10052_007_0410_8 crossref_primary_10_1016_0370_2693_79_90722_6 crossref_primary_10_1016_0370_2693_78_90538_5 crossref_primary_10_1103_PhysRevD_18_1422 crossref_primary_10_1016_0370_2693_78_90914_0 crossref_primary_10_1103_PhysRevLett_55_2543 crossref_primary_10_1103_PhysRevLett_39_1598 crossref_primary_10_1016_0370_2693_87_91305_0 crossref_primary_10_1016_0920_5632_93_90144_U crossref_primary_10_1103_PhysRevD_20_706 |
Cites_doi | 10.1103/PhysRevLett.35.1199 10.1103/PhysRevLett.38.1110 10.1103/PhysRevLett.38.577 10.1016/0029-554X(75)90372-9 10.1016/0370-2693(77)90570-6 |
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References | V. Barger, T. Gottschalk, D.V. Nanopoulos, J. Abad and R.J.N. Phillips, Univ. of Wisconsin preprint COO-595. Holder (BIB6) 1977; 70B Holder (BIB4) 1977; 69B Grant (BIB5) 1975; 131 Benvenuti (BIB1) 1975; 35 Barish, Benvenuti (BIB2) 1977; 38 10.1016/0370-2693(77)90686-4_BIB3 Grant (10.1016/0370-2693(77)90686-4_BIB5) 1975; 131 Benvenuti (10.1016/0370-2693(77)90686-4_BIB1) 1975; 35 Holder (10.1016/0370-2693(77)90686-4_BIB4) 1977; 69B Barish (10.1016/0370-2693(77)90686-4_BIB2_1) 1977; 38 Benvenuti (10.1016/0370-2693(77)90686-4_BIB2_2) 1977; 38 Holder (10.1016/0370-2693(77)90686-4_BIB6) 1977; 70B |
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Snippet | Forty seven events of the type
v + Fe →
μ
− +
μ
− + X and nine events of the type
v +
Fe → μ
+ + μ
+ +
X
have been observed, and zero events with like-sign... |
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Title | Like-sign dimuon events produced in narrow-band neutrino and antineutrino beams |
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